PS4 2013 (Labeled UHD capable in efficientgaming.eu but may not be, will find out with Firmware 4.0)
PS4 2015 (upgraded Southbridge) (labeled UHD Capable in efficientgaming.eu but but may not be, will find out with firmware 4.0)
PS4 2016 NEO (confirmed UHD Capable)
PS4 2016 "Slim" (rumor but could use the same southbridge NEO uses )
PS4 2019 10nm Navi (in efficientgaming.eu as 2019 navigation power cap drop)
Where are the various PS4's on the following roadmap? True Audio Xtensa DSP HiFi can I think support 2017-2022 Object based audio and is in all 2013 and later game consoles and AMD GCN 1.2 (2014) and later dGPUs as well as Kaveri and Carrizo. Main use now is for Virtual Reality (Positional audio).
2013 XB1 has HDMI 1.4a with HEVC 10 bit for HD media which straddles the 2012-2014 lines. (Labeled UHD capable and HD capable in various letters.... confusion! Chart shows it was possible to support UHD in 2013 (framerate and color depth are a function of a HEVC codec without hardware acceleration having difficulty (more expensive) supporting higher bandwidth UHD media) but now confirmed HD capable only by Albert Penello of Microsoft)
2016 XB1 Slim (confirmed UHD Capable)
2017 XB1 Scorpio